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Nuclear Science and Technology | Progress Report 165

of layers used to build the detector. The results this new science paradigm.
of these calculations will give support for the
building of real detectors. IPEN has a large number of different researches,
such as the Lidar applications in environmen-
e-Science tal measurements or the neutron activation

analysis and its applications in environmental
At the heart of the scientific development is the studies, archaeology, forensics, nutrition and
finding of new knowledge; generation, support health, all generating a large volume of data
and knowledge maintenance form the basis of that must be stored, curated, processed and
the scientific challenge. made available to the scientific community as
well as to the society.
One of the pillars of science is the ability of
reproduction of the results of scientific research The e-Science project at IPEN aims to create a
by independent researchers, making possible technological infrastructure that can embrace
the validation of methods, results and their this new methodology and that would allow
conclusions. new workflows of scientific discovery, solving
what has become an important problem for
In order to enable this in the current scenario, the scientific research - the organization, clas-
where the scientific data production became sification, selection and sharing of the giant
so intense (“big data”), systematic storing and amount of data produced in recent years by
curation methods, together with mechanisms all research areas of IPEN.
for making this data available in a secure way,
must be implemented. The first project, under the scope of the e-Sci-
ence umbrella, is the creation of a Data On-
With this data deluge, the whole scientific pro- tology for Neutron Activation Analysis (NAA)
cess is impacted, giving rise to a new science laboratory. A semantic layer is being built atop
paradigm, the e-Science, known as “The Fourth of the traditional data layer to allow more in-
Paradigm of scientific exploration”; it’s related telligent exploration of all data produced by
to the data intensive science as distinguished the NAA technique.
from the traditional computational science.
Activities at the Nuclear

e-Science is related to finding and sharing Metrology Laboratory
knowledge in the form of experimental data,
rich theoretical vocabularies, papers and reus- For many years, the Nuclear Metrology Labo-
able services, useful to scientific community. ratory (LMN) has been involved in developing
procedures for the standardization of important
To deal with all challenges of this new sce- radionuclides applied in nuclear medicine or
nario, a complex and large set of knowledge, reference standards for semiconductor detec-
systems, methods and technologies is involved. tors. The primary systems used by the LMN for
Mathematical models, digital repositories and this purpose are two 4πβ-γ coincidence sys-
data management, new hardware, software, tems: one consisting of a proportional counter,
protocols, tools and services are some of the coupled to one or two 3”x 3” NaI(Tl) crystals,
necessary items to support the demands of and a triple coincidence system, consisting